Help ID our sick fish and his illness?

Hey, everyone! We moved this bloated fish from my BF's tank to a hospital tank, but we don't know what kind of fish he is or what his disease might be. In the photo you can see some red discoloration. We don't know if that's a sign of internal injury or what. He was in a 55 gallon community tank and everybody else seems to be ok so I wouldn't think it's a water quality issue, but I'm REALLY new at this. I've put Epsom salt in the tank and was going to try feeding mashed peas in case he's just constipated. Any advice would be welcome! Thanks!

Trouble with bloat is you can't tell what has caused it. Could be bacterial, kidney failure, any number of things. All you know for sure is there's a fluid build up in its body cavity for some reason. A bactericide is usually the first option, or Metronidazole, but to be honest it looks too far gone to me.

I use peas whenever my fish are constipated and it usually works(plus the fishies love them so it's sort of a treat for them. Like Hampalong said though...it's hard to tell what causes bloat. Personally I've never had any luck with actual meds, so I would just make sure the water levels are good and maybe add a little aquarium salt, but that's just me. Good luck!

Thanks for all the advice! I think I'm going to hit the fish store today and see if they have some bactericide. I figure I'll give it a try, and if it doesn't work, it's probably good to have the fish med on hand anyway. Fingers crossed!